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Imerys S.A.
Société Anonyme
Traded as EuronextNK
CAC Mid 60 Component
Industry Mining
Founded 1880 (1880)
Headquarters Paris, France
Area served
Key people
Conrad Keijzer (Chief Executive Officer)
Products Specialty minerals
Subsidiaries Calderys,

Imerys S.A. is a French multinational company which specialises in the production and processing of industrial minerals. It is headquartered in Paris and is a constituent of the CAC Mid 60 index.

Imerys has operations in 50 countries and has more than 16,000 employees. It extracts and processes rocks and minerals on behalf of customers in the manufacturing and construction industries.

Groupe Bruxelles Lambert is the largest shareholder of Imerys.


The Company was founded in 1880 and for many years was known as Imetal.[1] It was founded by the Rothschild family, combining a few of their many subsidiaries in the metals and mining industries.[2]

The group's original activity was mining and transforming nickel. Its original name was Société Penarroya—Le Nickel (SLN). In the 1970s, the Group diversified and expanded its business. A holding company was created under the name of Imetal.

In 1980 Imétal absorbed the Société Mokta El Hadid, which was renamed Compagnie française de Mokta (CFM).[3]

From 1990 onwards, Imetal focused its development on industrial minerals, pursuing an acquisition policy. The Group established positions in the white pigments business and then the graphite market. It later grew through acquisitions in refractories, clays, ceramic bodies and technical ceramics. Between 1994 and 1998, Imetal doubled in size: one-third through organic growth and two-thirds through external growth. In 1998, the business was structured around two sectors (Mineral Transformation and Metal Transformation) and organized into operating divisions.

In 1998, Imetal took over English China Clays plc, a major UK producer of white pigments (kaolin and calcium carbonates), and then changed its name to Imerys.[1] Following this acquisition, Imetal refocused its activity on minerals processing, selling its Metal Transformation business, including the North American companies Copperweld and Copperweld Canada (now Fushi Copperweld). To reflect this development, Imetal changed its name, giving birth to Imerys on 22 September 1999.

The Group completed this refocusing by withdrawing from activities that no longer matched its core business, including dimension stones (Georgia, United States) and processing. Its speciality chemicals distribution business (CDM AB, Sweden) was also divested in 2004. In 2005, refractory mineral trading activities, notably basic refractories (American Minerals, Inc, United States) and roofing products distribution (Larivière, France) were sold. At the same time, Imerys acquired from Alleghany Corp. the U.S. company World Minerals Inc., a leading producer of diatomaceous earth and perlite.[4]

Since 1997, the company has transformed into a specialist of speciality minerals, under the impetus first of Patrick Kron, who has since become the chief of Alstom, and then Gérard Buffière.


The Imerys china clay works in Bugle, Cornwall, United Kingdom

Active in 50 countries with more than 250 industrial locations, Imerys operates about 130 mines and extracts 30 different minerals or families of minerals. The company achieved sales of €4.1 billion in 2015.

Using minerals mined from its reserves and processed using complex processes, the group develops solutions for use by industrial clients in their products or production processes. Its minerals have many applications in everyday life, including construction, hygiene products, paper, paint, plastic, ceramics, telecommunications and beverage filtration.

Headquartered in Paris, it employs about 16,000 people.

The company's North American Operations are headquartered in Roswell, Georgia and in San Jose, California United States.

Operating divisions[edit]

The company specialises in the mining and distribution of industrial minerals. It is organised into four operating divisions:

  • Energy Solutions & Specialties: Calcium carbonates for paper, paint, polymer, health & beauty; black carbons, synthetic and natural graphite powders for automotive and mobile energy; mineral specialties for gas & petroleum industry; alumino-silicate monolithic refractories used in the high-temperature industries.
  • Filtration & Performance Additives: kaolin for paper, polymer, coatings; talc for plastics, paint, paper, ceramics, health & beauty; mica for plastics and coatings; diatomite and perlite-based product for filtration of edible oil.
  • Ceramic Materials: terra cotta tiles and accessories, slate; minerals for ceramic and glass industries; kiln furnitures for tiles and ceramic industry.
  • High Resistance Minerals : refractory minerals (andalusite, clays...) for high temperature industries; fused minerals for abrasives, refractories, technical ceramics, heating elements for the iron & steel, automotive, industrial equipment and construction markets.

These divisions are organized into operational activities serving specific markets.

Corporate affairs[edit]

Financial data[edit]

Imerys's revenue reached €4,087 million in 2015.

These results are broken down as follows:

  • Energy Solutions & Specialties: 31% of 2015 revenue;
  • Filtration & Performance Additives: 26%;
  • Ceramic Materials: 28%;
  • High Resistance Minerals: 15%.

The geographical breakdown of 2015 revenue is as follows: Western Europe 44%, North America 24%, emerging countries 27% and Japan/Australia 5%.

Major shareholders[edit]

Main shareholders as of December 31, 2015:

  • Belgian Securities BV: 56.21%
  • Other shareholders: 43.79%

Executive Committee[edit]

  • Gilles Michel, Chairman of the Board
  • [5] Conrad Keijzer, Chief Executive Officer
  • Olivier Hautin, Vice President, Energy Solutions & Specialties business group
  • Daniel J.Moncino, Vice President, Filtration & Performance Additives business group
  • Frédéric Beucher, Vice President, Ceramic Materials business group
  • Alessandro Dazza, Vice President, High Resistance Minerals business group
  • Olivier Pirotte, Chief Financial Officer
  • Denis Musson, General Counsel & Company Secretary
  • Thierry Salmona, Vice President, Innovation, Research & Technology & Business Support
  • Bernard Vilain, Vice President Human Resources


Amongst its other activities, Imerys is bidding to develop one of the ten eco-towns proposed for construction in England. Planned for the site of former china clay mines in Cornwall, the project has the provisional title St Austell and Clay Country Eco-town.

Corporate sponsorships[edit]

Since January 2003, Imerys has supported the musical and operatic group Les Arts Florissants, and in particular its work promoting a resurgence of interest in the operas of numerous composers: Purcell's The Fairy Queen (Opéra-Comique, Paris in 2010), Lully's Atys (Opéra-Comique, Paris, and the Brooklyn Academy of Music, New York in 2011), Cavalli's La Didone (Caen Theatre in 2011), and Handel's Jeptha (Salle Pleyel, Paris in 2011). This ensemble is directed by the American-French conductor, William Christie, and specialized in Baroque music.

Following the Haiti earthquake in January 2010, Imerys cooperated with Emergency Architects to rebuild the Fontaine health centre at Cité-Soleil, the country's largest shanty town.

Imerys Talc America worker lockout[edit]

After Imerys Talc America in Three Forks, Montana unveiled plans to phase out union workers' retiree insurance, seniority, and overtime clauses, and to alter work rules and classifications, Boilermakers Local D-239 union workers did not ratify a new contract. In response, Imerys ordered 35 union workers off the property at 7 p.m. Aug 2, 2018.[6] The mill's union president, Randy Tocci, stated that the company brought in employees from other sites around Montana to run the mill in Three Forks, crossing picket lines. U.S. Senator Jon Tester (D-MT) issued a statement admonishing Imerys to "get back to the negotiating table."[7] On August 9, Montana Governor Steve Bullock stood with the unionized plant employees for more than an hour, offering his support and expressing hope that the parties would return to negotiations.[8]


  1. ^ a b Imerys: History Archived 2008-11-15 at the Wayback Machine.
  2. ^ Return of the Rothschilds: the great banking dynasty through two turbulent centuries, I.B.Tauris, 1995, Herbert R. Lottman, page 299
  3. ^ "Compagnie des Minerais de Fer Magnétique De Mokta-el-Hadid" (PDF), Entreprises Coloniales (in French), p. 194, 5 July 2015, retrieved 2017-08-14 
  4. ^ SEC Info - Alleghany Corp/DE - 8-K - For 7/14/05
  5. ^
  6. ^ Hamilton, Emma (August 4, 2018). "Talc plant workers protest in Three Forks after bosses lock them out". Cordillera Communications. Retrieved August 6, 2018. 
  7. ^ Loveridge, Melissa (August 4, 2018). "Union employees and Three Forks community picket talc plant after lockout". Bozeman Daily Chronicle. Pioneer News Group. Retrieved August 6, 2018. 
  8. ^ "Montana Governor Visits Locked-Out Union Workers". U.S. News & World Report. Associated Press. 2018-08-09. Retrieved 2018-08-17. 

External links[edit]